<template>
  <section class="msite">
    <HearderTop :title="address.name">
      <span class="header_search" slot="left">
        <i class="iconfont icon-search"></i>
      </span>
      <span class="header_login" slot="right">
        <span class="header_login_text">登录|注册</span>
      </span>
    </HearderTop>
    <!--首页导航-->
    <nav class="msite_nav">
      <div class="swiper-container">
        <div class="swiper-wrapper">
          <div class="swiper-slide" v-for="(categorys,index) in categoryArr" :key="index">
            <a href="javascript:;" class="link_to_food" v-for="(category,index) in categorys" :key="index">
              <div class="food_container">
                <img src="./images/nav/13.jpg">
                <span>{{category.title}}</span>
              </div>
            </a>
          </div>
        </div>
      </div>
<!--      <img src="./images/msite_back.svg" v-else alt="back"></img>-->
    </nav>

    <!--首页附近商家-->
    <div class="msite_shop_list">
      <div class="shop_header">
        <i class="iconfont icon-xuanxiang"></i>
        <span class="shop_header_title">附近商家</span>
      </div>
      <ShopList/>
    </div>
  </section>

</template>

<script>
import HearderTop from "@/components/HearderTop/HearderTop";
import ShopList from "@/components/ShopList/ShopList";
import Swiper from 'swiper'
import 'swiper/dist/css/swiper.min.css'
import {mapState} from "vuex";
export default {
  name: "Msite",
  mounted() {
    this.$store.dispatch("getCategorys")
    this.$store.dispatch('getShops')
  },
  components: {
    HearderTop,
    ShopList
  },
  data() {
    return {
      baseImageUrl: 'https://fuss10.elemecdn.com'
    }
  },
  computed: {
    ...mapState(['address','categorys']),
    categoryArr() {
      const { categorys } = this
      //准备一个空数组
      const bigArr = []
      let smallArr = []
      categorys.forEach(item => {
        // 思路：
        //  (1)先把每一个数组读取出来，分别存入小数组中，当小数组长度为8时，重新创建一个小数组，继续存入
        //  (2)如何存进大数组中呢？
        //         当小数组的长度为0时存入大数组
        // 如果当前小数组长度为8，创建一个新的
        if (smallArr.length === 8){
          smallArr = []
        }
        if(smallArr.length === 0 ){
          bigArr.push(smallArr)
        }
        smallArr.push(item)
      })
      return bigArr
    }
  },
  watch: {
    categorys(value) {
      this.$nextTick(() =>{
        new Swiper('.swiper-container',{
          loop: true,
          pagination: {
            el: '.swiper-pagination'
          }
        })
      })
    }
  }
}
</script>

<style lang="stylus" rel="stylesheet/stylus">
@import "../../common/stylus/mixins.styl"
ul
  list-style none
.msite  //首页
  width 100%

  .msite_nav
    bottom-border-1px(#e4e4e4)
    margin-top 45px
    height 200px
    background #fff
    .swiper-container
      width 100%
      height 100%
      .swiper-wrapper
        width 100%
        height 100%
        .swiper-slide
          display flex
          justify-content center
          align-items flex-start
          flex-wrap wrap
          .link_to_food
            width 25%
            .food_container
              display block
              width 100%
              text-align center
              padding-bottom 10px
              font-size 0
              img
                display inline-block
                width 50px
                height 50px
            span
              display block
              width 100%
              text-align center
              font-size 13px
              color #666
      .swiper-pagination
        >span.swiper-pagination-bullet-active
          background #02a774
  .msite_shop_list
    top-border-1px(#e4e4e4)
    margin-top 10px
    background #fff
    .shop_header
      padding 10px 10px 0
      .shop_icon
        margin-left 5px
        color #999
      .shop_header_title
        color #999
        font-size 14px
        line-height 20px

</style>